1 Med. a (usu. foll. by into) drive or force (a solution, medicine, etc.) by or as if by a syringe. b (usu. foll. by with) fill (a cavity etc.) by injecting. c administer medicine etc. to (a person) by injection.
2 place or insert (an object, a quality, etc.) into something (may I inject a note of realism?).
Derivatives:
injectable adj. & n. injector n.
Etymology: L injicere (as IN-(2), jacere throw)
Useful english dictionary. 2012.